Solve.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 8 sec
B. 34 sec
C. 17 sec
D. 25.5 sec
Answer: C
Mathematics
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Round the number as requested.1.18539 (nearest thousandth)
A. 1.086 B. 1.085 C. 1.285 D. 1.185
Mathematics
Perform the operation and give the answer as a fraction in lowest terms.
÷ 
A. - 
B. 
C. - 
D. 
Mathematics
Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in dark gray on a white background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix B such that A + B will represent the entire picture becoming one gray level darker.
A. 
B. 
C. 
D. 
Mathematics
Simplify. Assume radicands of square roots are positive.(
)3
A. 27x3 - 64 B. (3x - 4)9 C. 27x3 - 108x2 + 144x - 64 D. 3x - 4
Mathematics